In 1965 Houphouët-Boigny reorganized his administration to accommodate the growing number of Ivoirians qualified to fill government positions. The four existing départements were redivided into six départements with twenty-four préfectures. A corresponding increase in the number of prefects (préfets) took place. By the end of 1972, there were 115 subprefectures. This rise in the number of administrative subdivisions facilitated easier public access to government offices that the new civil code, implemented in 1964, necessitated.

Houphouët-Boigny also purged the party of more than 200 party leaders in mid-1964. The group included five members of the Political Bureau and six members of the Executive Committee of the party's Youth Auxiliary, who had been implicated in alleged treasonous activities. In the ensuing overhaul of the party structure, party leaders modified the PDCI's organization to parallel the reorganized state bureaucracy; forty-five new party sections, corresponding to the number of new subprefectures in 1965, were added to the existing sections. Each was led by an elected secretary general. The number of party sections was increased again in 1970 to correspond to the increase in the number of subprefectures. The new sections were subdivided into village committees in rural areas and into ward and ethnic subcommittees in towns.

Data as of November 1988